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BORROWINGS (Details)
9 Months Ended
Sep. 30, 2019
USD ($)
Dec. 31, 2018
USD ($)
BORROWINGS    
Number of unsecured federal funds lines of credit 3  
Federal Funds Lines of Credit One    
BORROWINGS    
Maximum borrowing capacity $ 10,000,000  
Amount outstanding 0 $ 0
Federal Funds Lines of Credit Two    
BORROWINGS    
Maximum borrowing capacity 19,000,000  
Amount outstanding 0 0
Federal Funds Line of Credit Three    
BORROWINGS    
Maximum borrowing capacity 25,000,000  
Amount outstanding 0 0
FHLB Topeka    
BORROWINGS    
Amount of collateral pledged 536,900,000 475,400,000
Available balance 366,200,000  
Borrowings from FHLB $ 10,000,000 15,000,000
August 2, 2019    
BORROWINGS    
Interest rate 2.65%  
Borrowings from FHLB   5,000,000
August 26, 2020    
BORROWINGS    
Interest rate 1.94%  
Borrowings from FHLB $ 10,000,000 $ 10,000,000